Traffic Signal

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2878678/widgets/1061017"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2878678/widgets/1061019"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2878678/widgets/1061020"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2878678/widgets/1061021"></iframe>